YMGI VRUO-2436HP-U2B(54) Installation Instructions & User Manual Download | Manualshive

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YMGI, Engineered Comfort Products for A Sustainable

and Efficient Green World!

INSTALLATION INSTRUCTIONS & USER MANUAL

DC INVERTER SPLIT TYPE HEAT PUMP (Down to -22°F Ambient)

OUTDOOR CONDENSING UNIT

Model Numbers:

VRUO-2436HP-U2B(54)
VRUO-4860HP-U2B(54)

Thermostat-Controlled

Universal Outdoor
Condenser Works With:

1. Any Brand of American

Style Indoor Units, and

2. YMGI Indoor Unit

Universal VRUI

Thank you for choosing

this YMGI product. Please read the owner’s manual carefully before installation and operation, and retain for your

records and future reference. If you need a replacement copy, please contact your local agent or visit www.ymgigroup.com to download
a current electronic version.

NOTICE

This product is designed and manufactured to be free from any defects in material and workmanship during normal use and
maintenance. Installation, operation, maintenance and repair must follow all standards and professional practices for regular cooling
and heating equipment, such as NEC, State, or Local Codes and all related documents/manuals provided by YMGI. Failure to follow
and adhere to all codes and documentation can cause damage to equipment, property even personal injury.

Installer

: Currently licensed/certified HVAC technicians only. Must Read the manual and all provided documents prior to installation.

Complete and fill out all required information on the warranty registration card.

User

: Retain this manual and all supplied documents for your records and future reference.

Servicer

: Use this manual for information concerning servicing and maintenance of this product.

SAFETY WARNING

Only qualified technicians should install and service this equipment. The installation, startup, operation and servicing of this equipment
can be hazardous and requires a HVAC professional who has been trained, licensed and certified. Installations, adjustments or any
equipment alterations done by an unqualified person could result in serious injury and even death. When working on the equipment,
observe all precautions in the provided documents, on the tags, stickers, and labels that are attached to or placed on the equipment.

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Summary of Contents for VRUO-2436HP-U2B(54)

Page 1: ...ting equipment such as NEC State or Local Codes and all related documents manuals provided by YMGI Failure to follow and adhere to all codes and documentation can cause damage to equipment property even personal injury Installer Currently licensed certified HVAC technicians only Must Read the manual and all provided documents prior to installation Complete and fill out all required information on ...

Page 2: ...VAC Contractor 11 Introduction to Unitary Systems 14 System Diagram and Compatible Indoor Units 15 Product Introduction 16 Installation Preparation 17 Unit Dimensions 18 Specification Sheets 19 Diagrams of Unit Space and Clearances 21 Recommended Tools for Installation 25 Outdoor Unit Installation 26 Connection Pipe Installation 26 Connection Pipe Vacuum Pump and Leak Detection 31 Installation of ...

Page 3: ...irements for handling reclaiming recovering and recycling of certain refrigerants the equipment and tools necessary to perform these service procedures In addition some states or municipalities may have additional requirements that must also be adhered to for responsible management of refrigerants HVAC R technicians must know the applicable laws and follow them Disposal Notice Do not dispose this ...

Page 4: ...ystem installer or HVAC professional as soon as possible and provide the following information Data on the unit model number serial number and owner s name A detailed description of the unit s problem before and after the problem occurred To avoid personal injury or property damage do not disassemble the unit yourself If disassembly is required to check the unit contact your authorized system inst...

Page 5: ...s etc which the manufacturer may not require certified and licensed personnel to install Reading and following YMGI Group recommendations and requirements contained in the following pages and other documents is the first step to help ensure a smooth installation and proper operation of your unit for many years YMGI doesn t recommend nor allow any do it yourself DIY installation partially or fully ...

Page 6: ...lling the piping through any structures at time of installation 2 Not installing an oil P trap in the copper suction line where the indoor unit is located 18 feet or more below the outdoor unit 3 Cross piping and or cross wiring of any units including more than one single zone or a multi zone system 4 Not conducting a positive leak check prior to the negative leak check 5 Not conducting a positive...

Page 7: ...D D or any other identifying marks on each pair of copper lines and wiring cable sets to keep from cross piping or cross wiring in multiple zone installations or where pipes for different single zone systems are close to one another 13 Secure the wiring cables that connect between the indoor unit and outdoor unit following all applicable NEC state and local codes for your installation If there is ...

Page 8: ...cation or 90 days as of original shipping date from YMGI Group whichever comes first This is a standard limited liability warranty and DOES NOT cover the following Any damage or repairs to properties or persons as an incident of or consequence of improper faulty transportation installation operation maintenance or service Any damage caused by frozen or broken water hoses or refrigeration pipes in ...

Page 9: ...est will be charged accordingly 3 YMGI will ground ship out the parts ASAP Expedited shipping is available at the customer s expense 4 Replacement parts that have an approved warranty registration are to be warranted for the remainder of the 2 year on parts and a 7 year compressor warranty Purchasing of replacement parts without a valid warranty filing or unapproved warranty request will be sold a...

Page 10: ...YMGI Engineered Comfort Products for A Sustainable and Efficient Green World YMGI Your Modern Green Idea 10 ...

Page 11: ...ine if they are reputable 4 Use only a reputable licensed certified HVAC installation professional to prevent any unexpected charges because of unethical business practices 5 Check their references verify they provide professional service for their customers N A T E or A C C A certified technicians are strongly recommended 6 Some contractors technicians may not feel comfortable about installing eq...

Page 12: ...nts 17 While operating in cooling mode do not set the indoor unit s room temperature too low Keeping the temperature difference between indoor and outdoor unit within 41 18 YMGI Group recommends that only properly trained and authorized personnel be allowed to repair or service the unit Improper repairs or servicing can result in electric shock or fire hazards Please contact YMGI Group if you need...

Page 13: ... Make sure to disconnect the power supply and switch off all circuits prior to inspecting or servicing the unit Inspecting and servicing the unit while the power supply is connected and the circuits are switched on could cause an electrical shock or fire DO NOT install the indoor unit near any cooking surfaces in direct sunlight or any ventilation systems Poor placement could decrease efficiency a...

Page 14: ...others are incorporated into the cabinet in an optimized order They can be either hung on the wall or installed on the ground Once stacking or bracket kit is used some outdoor units can be stacked 2 or 3 units high depending upon unit size and applications Air is discharged horizontally quietly and smoothly These units are a perfect fit in locations where installation and applications of general u...

Page 15: ...YMGI Engineered Comfort Products for A Sustainable and Efficient Green World YMGI Your Modern Green Idea 15 System Diagram ...

Page 16: ... C 22 F 30 C 75 2 F 24 C Standard Accessories Outdoor Unit Accessories No Name Appearance Qty Usage 1 Drain Plug 3 To plug the unused drain hole 2 Drainage Connecter 1 To connect with the hard PVC drain pipe Optional Accessories Outdoor Unit Accessories No Name Appearance Qty Usage 1 Connection pipe 3 To connect with the unit and gas pipe 2 Connection pipe 1 To connect with the unit and liquid pip...

Page 17: ...flow produced by the outdoor unit will not disturb the neighbors 2 Select a location that is safe and away from animals and plants If not please add safety fences to protect the unit 3 Install at a place with good ventilation Make sure the outdoor unit stays at a well ventilated place with no obstacles nearby that may obstruct the air inlet and outlet 4 The installation location should be able to ...

Page 18: ... and Efficient Green World YMGI Your Modern Green Idea 18 UNIT ENGINEERING SUBMITTALS MECHANICAL OUTDOOR UNIT Dimensions In mm Model A B C D E G VRUO 2436HP U2B 54 37 940 20 7 8 32 1 4 820 24 610 19 1 8 18 1 8 VRUO 4860HP U2B 54 39 3 8 53 47 64 14 9 16 ...

Page 19: ...ng A 7 18 Heating A 7 18 Rated current2 Cooling A 13 30 Heating A 17 31 Max Overcurrent Protection A 35 45 Min Max Voltage V 187 253 187 253 Power cord spec mm2 x pcs Sound Pressure Level H M L dB A 55 58 Sound Power Level H M L dB A 65 68 Refrigerant Type R410A R410A Charge oz 148 15 220 46 Throttling Method Electronic Expansion Valve Electronic Expansion Valve Compressor Trademark Gree Gree Manu...

Page 20: ...ation temp Cooling F 5 129 2 5 129 2 Heating F 22 75 2 22 75 2 Defrosting Method Automatic Defrosting Automatic Defrosting Isolation I I Moisture Protection IPX4 IPX4 Overload Protector Dimension Outline dimension W D H In 37 1 64 18 7 64 32 9 32 39 3 8 14 9 16 53 47 64 Package dimension L W H In 42 41 64 22 9 16 38 5 16 45 25 64 19 13 32 59 1 4 Weight Net Weight lbs 217 16 308 65 Gross Weight lbs...

Page 21: ...rformance of the outdoor unit make sure its installation space conforms to the following installation dimensions When one outdoor unit is to be installed Units in A E HbHdH mm a b c d e B 4 A B C 12 4 4 B E 4 39 5 A B C E 12 6 6 39 5 D 39 5 D E 39 5 39 5 B D Hb Hd Hd H 4 39 5 Hb Hd Hd H 4 39 5 B D E Hb Hd Hb 1 2H 10 78 75 39 5 1 2H Hb H 10 78 75 39 5 Hb H Prohibited Hb Hd Hd 1 2H 4 78 75 39 5 1 2H...

Page 22: ...ts are to be installed side by side Units in A E Hb Hd H mm a b c d e A B C 12 12 39 5 A B C E 12 12 39 5 39 5 D 78 75 D E 78 75 39 5 B D Hb Hd Hd H 12 78 75 Hb Hd Hd H 10 78 75 1 2H Hd H 12 98 5 B D E Hb Hd Hb 1 2H 12 78 75 39 5 1 2H Hb H 12 98 5 39 5 Hb H Prohibited Hb Hd Hd 1 2H 10 98 5 39 5 1 2H Hd H 12 98 5 39 5 Hd 1 2H Prohibited ...

Page 23: ... Engineered Comfort Products for A Sustainable and Efficient Green World YMGI Your Modern Green Idea 23 When outdoor units are installed in rows Units in Hb H mm Hb 1 2H B 10 1 2H Hb H B 12 Hb H Prohibited ...

Page 24: ...YMGI Engineered Comfort Products for A Sustainable and Efficient Green World YMGI Your Modern Green Idea 24 When outdoor units are installed one above another Units mm ...

Page 25: ...Level Flash Light Screw Driver Phillips and Flat Hammer Knife Scissors Goggled Glasses Mask Gloves Ladder 2 Refrigeration Related Work Flat Surface Wrench Two Flare Nut Tool Set Hex Head Key Set Torch for AC Application Heat Absorption Flux Nitrogen Soap Bubble Vacuum Pump Helium Leakage Check Manifold 3 Electrical Related Installation Wire Cutter Wire Stripper Sharp Plier Cable Ties Black Tape fo...

Page 26: ... figures Connection Pipe Installation Installation Notice and Requirement on Connection Pipe Installation method Connect the connection pipes first to the unit When bending a connection pipe be careful not to damage the pipe Do not over tighten the screw nut otherwise leakage will occur Besides the outside of connection pipe should be added with a layer of insulating cotton to protect it from mech...

Page 27: ...l return bend is as below 1 Outdoor unit is beneath the indoor unit There s no need to add non return bend at the lowest or highest position of the vertical pipe as shown below 2 Outdoor unit is above the indoor unit It s necessary to add oil return bend and non return bend at the lowest and highest position of the vertical pipe as shown below ...

Page 28: ...that the chips do not enter the pipe 3 Remove the cut off valve of outdoor unit and take out the flare nut from the bag of indoor unit accessories Then fit the flare nut on the pipe and use a flaring tool to flare the mouth of connection pipe 4 Check whether the flaring part has cracked See the figure below Pipe Bending 1 The pipes are shaped by your hands Be careful not to collapse crush or kink ...

Page 29: ... the unit Please follow the instructions stated in the figures below Use both spanner and torque wrench 2 When connecting the tapered screw nut first apply chilled machine oil on its inner and outer surface and then screw it up for 3 4 circles 3 Confirm the tightening torque by referring to the following table If the screw nut is over twisted it may be damaged and cause leakage 4 Check whether gas...

Page 30: ...ient Green World YMGI Your Modern Green Idea 30 Solder Connection Screw on the flare nut of the flaring connecting pipe on the outdoor unit valve Screw Connection Pipe diameter in Tightening torque N m 1 4 15 30 3 8 35 40 1 2 45 50 5 8 60 65 3 4 70 75 7 8 80 85 ...

Page 31: ...he lower pressure side of the manifold valve assembly and start the vacuum pump Meanwhile the switch at the high pressure side of the manifold valve assembly should be kept closed otherwise evacuation would fail 5 The evacuation duration depends on the unit s capacity generally Model Time min VRUO 2436HP U2B 54 30 VRUO 4860HP U2B 54 30 And verify if the pressure gauge at the low pressure side of t...

Page 32: ...a Pipe VRUO 2436HP U2B 54 7 5m 9 5m 54 g m 24 6 ft 31 68 ft 1 9 oz 3 28 ft VRUO 4860HP U2B 54 7 5m 9 5m 54 g m 24 6 ft 31 68 ft 1 9 oz 3 28 ft Installation of Drain Pipe Outdoor Side Drainage Pipe 1 If the outdoor unit is underneath the indoor unit arrange the pipeline according to the following diagram 1 Drain hose should be placed on the ground and its end should not be immersed into water The w...

Page 33: ...is firmly secured so that it cannot move in the event of intense vibrations or a strong wind Do not install the outdoor unit in pits or air vents Do not install the outdoor unit where it is exposed to direct sunlight INSTALLING THE PIPES Use suitable connecting pipes and equipment for the refrigerant R410A The refrigerant pipes must not exceed the maximum lengths given in the technical data table ...

Page 34: ...roller wire and outdoor unit must be effectively fixed 6 The external power cord the temperature controller wire and outdoor unit can t directly contact any hot objects For example they must not contact chimney pipes warm gas pipes or other hot objects 7 The external power cord and the temperature controller wire and outdoor unit must not be squeezed Never pull stretch or bend the wires 8 The exte...

Page 35: ...nd the solid wire into a ring that fits the terminal screw 4 Form a proper ring and then put it on the terminal board Use a screwdriver to tighten up the terminal screw 2 For strand wires as shown below 1 Use wire cutters to cut off the wire ends and then peel away about 10mm of the insulation layer 2 Use a screwdriver to unscrew the terminal screw on the terminal board 3 Use a round terminal fast...

Page 36: ...s turned off Incorrect wire connection may burn out the electrical components Connect the wires firmly to the wiring box Incomplete installation may create a fire hazard Please use wire clamps to secure the external covers of temperature controller wires Insulators must be clamped securely otherwise electric leakage may occur Ground wire should be connected ...

Page 37: ...mps and the latter ones with small clamps Use screws to tighten up the temperature controller wires and power cords of the units on the terminal board Wrong connection may lead to fire hazard If the temperature controller wires of the units and power cords are not correctly connected the air conditioner may be damaged Ground the units through connecting the ground wire The units should comply with...

Page 38: ... one end of the Temperature controller cord and the power cord to the terminal board Single phase unit VRUO 2436HP U2B 54 Power cord should be secured along with the right side plate and fixed to the hook with a wire clamp so as to avoid contacting the pipeline The temperature controller wire should also be laid along with the right side plate but away from the power cord ...

Page 39: ...erant charging amount The refrigerant charging amount can t be controlled Test Running Preparation before connecting the power 1 Power must not be connected if the installation work is not completed 2 Control circuit is correct and all the wires are firmly connected 3 Cut off valves of the gas pipe and liquid pipe are open 4 The inside of the unit should be clean Take irrelevant objects out if the...

Page 40: ...CKETS BRKT XXXX SC1 Made of steel Coated with weatherproof polyester powder Model Size Inch Capacity A B LBs Btu h BRKT 0918 SC1 17 7 15 4 320 09K 18K BRKT 1860 SC 21 7 18 3 360 18K 60K BRKT XXXX ST1 Made of stainless steel Model Size Inch Capacity A B LBs Btu h BRKT 0918 ST1 17 7 15 4 320 09K 18K BRKT 1860 ST1 21 7 18 3 360 18K 60K RIST XXXX PVC Foot Riser Accessories End Caps Optional Shock proo...

Page 41: ... will be quickly cooled down The air conditioner generates excessive noise System switches to heating mode after defrosting Defrosting process will generate some water which will turn to water vapor The air conditioner is buzzing at the beginning of operation Temperature control will be buzzing when it starts working The noise will become quieter after operating for about 1 minute Dust comes from ...

Page 42: ...igerant collecting mode 4 F2 Condenser temperature sensor error 5 F3 Outdoor ambient temperature sensor error 6 F4 Discharge temperature sensor error 7 F6 ODU tube temperature sensor error 8 EE ODU memory chip error 9 PF Electric box sensor error 10 H3 Compressor overload protection 11 H4 Overload 12 H5 IPM protection 13 H6 DC fan error 14 H7 Driver out of step protection 15 HC Pfc protection 16 L...

Page 43: ... exchanger of outdoor unit periodically clean it once at least in every two months Clean the dust and debris on the surface of the heat exchanger with a nylon brush and dust pan or if there s compressed air source use compressed air to blow the dust off of the surface of the heat exchanger Do NOT use tap water for cleaning Drainage Pipe Regularly check to see if the drainage pipe is blocked or obs...

Page 44: ...here they are unlikely to be exposed to any substance which may corrode refrigerant containing components unless the components are constructed of materials which are inherently resistant to being corroded or are suitably protected against being so corroded Checks to electrical devices Repair and maintenance to electrical components should include initial safety checks and component inspection pro...

Page 45: ...recharging the system it shall be pressure tested with OFN The system shall be leak tested on completion of charging but prior to commissioning A follow up leak test shall be carried out prior to leaving the site Decommissioning Before carrying out this procedure it is essential that the technician is completely familiar with the equipment and all its details It is recommended good practice that a...

Page 46: ...scales shall be available and in good working order Hoses should be complete with leak free disconnect couplings and in good condition Before using the recovery machine check that it is in satisfactory working order has been properly maintained Consult manufacturer if in doubt The recovered refrigerant should be returned to the refrigerant supplier in the correct recovery cylinder and the relevant...

Page 47: ...YMGI Engineered Comfort Products for A Sustainable and Efficient Green World YMGI Your Modern Green Idea 47 WIRING DIAGRAM VRUO 2436HP U2B 54 ...

Page 48: ...YMGI Engineered Comfort Products for A Sustainable and Efficient Green World YMGI Your Modern Green Idea 48 VRUO 4860HP U2B 54 ...

Page 49: ...________________ Technician Name ____________________________________________________________ Phone _____________________________________________________________________ Email ______________________________________________________________________ INSTALLATION NOTES Please record any questions or problems you have experienced as a unit history No Date Notes Asked Your Technician for Help Asked YMGI...

Page 50: ...TES Please record any questions or problems you have experienced as a unit history No Date Company Name Technician Name Phone HVAC License Job Not Performed by Technician Technician Checklist Completed Fully SERVICE MAINTENANCE NOTES No Date Type of Service Maintenance Company Name Technician Name Phone HVAC License ...

Page 51: ...Engineered Comfort Products for A Sustainable and Efficient Green World YMGI Your Modern Green Idea 51 This VRUO Outdoor unit can work with any Indoor Unit Air Handler of any other major North American brand ...

Page 52: ... 8 16 and 24 Ton Symphony SOLO DC Inverter 57 2 3 Single Zone 16 SEER 09 36K Btu h 58 4 78 1 Single Zone 18 23 SEER 09 36K Btu h Symphony CHOIR DC Inverter 46 2 DC Inverter Multiple Zone 15 SEER 2x09K and 2x12K Btu h 59 2S DC Inverter Multiple Zone 16 SEER 6x09K to 9x09K Btu h 59 4 DC Inverter Multiple Zone 21 SEER 2x09K to 5x12K Btu h Symphony VRF DC Inverter HP Heat Recovery and Solar Up to 64 z...

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